lineage_kernel_xcoverpro/drivers/samsung/sec_crash_key.c

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2023-06-18 22:53:49 +00:00
/*
* Copyright (c) 2018 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Samsung TN debugging code
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/notifier.h>
#include <linux/sec_debug.h>
#include <linux/debug-snapshot.h>
#ifndef CONFIG_SEC_KEY_NOTIFIER
#include <linux/gpio_keys.h>
#else
#include <linux/input.h>
#include "sec_key_notifier.h"
#endif
#ifdef CONFIG_SEC_KEY_NOTIFIER
static unsigned int __crash_keys[] = {
KEY_VOLUMEDOWN, KEY_VOLUMEUP, KEY_POWER
};
//static spinlock_t key_crash_lock;
#endif
static int sec_crash_key_check_keys(struct notifier_block *nb,
unsigned long type, void *data)
{
#ifndef CONFIG_SEC_KEY_NOTIFIER
unsigned int code = (unsigned int)type;
int state = *(int *)data;
#else
struct sec_key_notifier_param *param = data;
unsigned int code = param->keycode;
int state = param->down;
#endif
dbg_snapshot_check_crash_key(code, state);
return NOTIFY_DONE;
}
#ifndef CONFIG_SEC_KEY_NOTIFIER
static struct notifier_block nb_gpio_keys = {
.notifier_call = sec_crash_key_check_keys
};
#else
static struct notifier_block seccmn_crash_key_notifier = {
.notifier_call = sec_crash_key_check_keys
};
#endif
int __init sec_crash_key_init(void)
{
//spin_lock_init(&key_crash_lock);
/* only work when upload enabled*/
if (sec_debug_enter_upload()) {
#ifndef CONFIG_SEC_KEY_NOTIFIER
register_gpio_keys_notifier(&nb_gpio_keys);
#else
sec_kn_register_notifier(&seccmn_crash_key_notifier,
__crash_keys, ARRAY_SIZE(__crash_keys));
#endif
pr_info("%s: force upload key registered\n", __func__);
}
return 0;
}
early_initcall(sec_crash_key_init);